Background: During transition from child and adolescent psychiatry (CAP) to general adult psychiatry (GenP) young adults with mental illness face multilevel transitions along with a risk for disruption in continuity of care. The aim of this study was to describe professionals' experiences and views of the transition process from CAP to GenP. Method: Data were collected through six focus group discussions with professionals from both CAP and GenP and analyzed by content analysis. Results: The results showed a gap in transition between CAP and GenP when different perspectives and care cultures meet in a complex process. Conclusions: Cooperation, transition planning, and a mutual understanding of care can support young adults in transition from CAP to GenP. © 2013 Wiley Periodicals, Inc.